[ Research Interests and Curriculum Vitae |
Publications | Distinctions, Awards and Grants | Editorial work | Invited Talks and Conferences | Seminars | Teaching
| Links]
Welcome! I am an Associate Professor at the Department of Mathematics and Statistics, Boston University. I am affiliated with the Center for Information and Systems Engineering, Boston University
and I have been a junior faculty fellow at the Hariri Institute for Computing and Computational Sciences & Engineering
at Boston University. I completed my PhD at the
Department of Mathematics, University of Maryland at College Park, advised by Professor Mark Freidlin and I was at
the Division of Applied Mathematics, Brown University
as a Prager Assistant Professor from 2009-2012.
My undergraduate studies were in Applied Mathematics and Physics at the National Technical University of Athens in Greece.
(NTUA).
Research interests:
My research lies broadly in the areas of stochastic processes, algorithmic and computational methods in machine and statistical learning, applied mathematics and probability,
financial mathematics,
asymptotic problems for stochastic processes and partial differential equations such as multiscale methods and large deviations,
statistical analysis and inference. In particular:
- Mathematical and computational methods for machine learning algorithms
- Stochastic optimal control and optimization
- Monte Carlo methods and rare event analysis
- Asymptotic problems for stochastic processes and partial differential equations (PDE's) such as multiple scale problems and large deviations
- Metastability analysis of dynamical systems
- Systemic risk and risk managenemt, large portfolio asymptotics, stochastic volatility models and large deviations
- Statistical inference for stochastic differential equations
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Submitted papers:
- "Disentangling positive and negative partisanship in affective polarization using a coevolving latent space network with attractors model", (with Xiaojing Zhu, Cantay Caliskan, Dino P. Christenson, Dylan Walker, Eric D. Kolaczyk), 2021, [ArXiv preprint], submitted.
- "Geometry-informed irreversible perturbations for accelerated convergence of Langevin dynamics", (with Benjamin J. Zhang, Youssef M. Marzouk), 2021, [ArXiv preprint], submitted.
- "PDE-constrained Models with Neural Network Terms: Optimization and Global Convergence", (with Justin Sirignano and Jonathan MacArt), 2021, [ArXiv preprint], submitted.
- "Online Adjoint Methods for Optimization of PDEs", (with Justin Sirignano), 2021, [ArXiv preprint], submitted.
- "Moderate deviations for systems of slow-fast stochastic reaction-diffusion equations",
(with Ioannis Gasteratos and Mickey Salins), 2021, [ArXiv preprint], submitted.
- "Large deviations for interacting multiscale particle systems", (with Zachary Bezemek), 2020, [ArXiv preprint], submitted.
- "Scaling Limit of Neural Networks with the Xavier Initialization and Convergence to a Global Minimum ", (with Justin Sirignano), 2019, [ArXiv preprint], unpublished technical note, available on arxiv.
Book Chapters:
- "Importance sampling for metastable and multiscale dynamical systems",
Stochastic Processes, Multiscale Modeling, and Numerical Methods for Computational Cellular Biology, (Editors: D. Holcman) , Springer, 2017, pp 29-53, [ArXiv preprint]
- "Systemic Risk and Default Clustering for Large Financial Systems",
Large Deviations and Asymptotic Methods in Finance, (Editors: P. Friz, J. Gatheral, A. Gulisashvili, A. Jacqier, J. Teichmann) , Springer Proceedings in Mathematics and Statistics, Vol. 110 2015,
[SSRN] ,[ArXiv preprint].
Publications:
- "Mean Field Limits of Particle-Based Stochastic Reaction-Diffusion Models", (with Samuel A. Isaacson and Jingwei Ma), 2021, SIAM Journal on Mathematical Analysis, [ArXiv preprint], to appear.
- "Discrete-time inference for slow-fast systems driven by fractional
Brownian motion", (with Solesne Bourguin and Siragan Gailus), 2021, SIAM Journal on Multiscale Modeling and Simulation, [ArXiv preprint], to appear.
- "How reaction-diffusion PDEs approximate the large-population limit of stochastic particle models", (with Samuel A. Isaacson and Jingwei Ma), 2021, SIAM Journal on Applied Mathematics, [ArXiv preprint], to appear.
- "Normalization effects on shallow neural networks and related asymptotic
expansions", (with Jiahui Yu), 2021, AIMS Journal on Foundations of Data Science , [ArXiv preprint], to appear.
- "Asymptotics of Reinforcement Learning with Neural Networks", (with Justin Sirignano), 2021, Stochastic Systems, [ArXiv preprint], to appear.
- "Metastability and exit problems for systems of stochastic reaction-diffusion equations", (with Michael Salins), 2021, Annals of Probability , Vol. 49, No. 5, pp. 2317–2370, [ArXiv preprint].
- "Mean field analysis of deep neural networks", (with Justin Sirignano), 2020, Mathematics of Operations Research, [ArXiv preprint], to appear.
- "Typical dynamics and fluctuation analysis of slow-fast systems driven by fractional Brownian motion", (with Solesne Bourguin and Siragan Gailus), 2020, Stochastics and Dynamics, [ArXiv preprint], to appear.
- "Optimal investment and derivative demand under price impact", (with Michail Anthropelos and Scott Robertson), 2020, Mathematical Finance, [ArXiv preprint], to appear.
- "Selection of quasi-stationary states in the stochastically forced Navier-Stokes equation on the torus", (with Margaret Beck, Eric Cooper and Gabriel Lord), 2020, Journal of Nonlinear Science , Volume 30, pp. 1677–1702, [ArXiv preprint].
- "Network effects and default clustering for large systems", (with Jia Yang), 2020, Journal of Applied Mathematical Finance, Volume 26, Issue 6, pp. 523-582, [ArXiv preprint].
- "Importance sampling for slow-fast diffusions based on moderate
deviations", (with Matthew Morse), 2020, SIAM Journal on Multiscale Modeling and Simulation, Vol. 18, No. 1, pp. 315--350. [ArXiv preprint].
- "Mean field analysis of neural networks: a law of large numbers", (with Justin Sirignano), 2020, SIAM Journal on Applied Mathematics, Vol. 80, Issue 2, pp. 725--752. [ArXiv preprint].
- "Information geometry for approximate Bayesian computation", 2020, SIAM/ASA Journal on Uncertainty Quantification, Vol. 8, Issue 1, pp. 229--260 [ArXiv preprint].
- "Optimal scaling of the MALA algorithm with irreversible proposals for Gaussian targets", (with Michela Ottobre and Natesh S. Pillai), 2020, Stochastics and Partial Differential Equations: Analysis and Computations, Vol. 8, pp. 311--361 [ArXiv preprint]
- "Stochastic gradient descent in continuous time: a central limit theorem", (with Justin Sirignano), 2019, Stochastic Systems , Volume 10, Issue 2, pp. 99-191, [ArXiv preprint].
- "Mean field analysis of neural networks: A central limit theorem", (with Justin Sirignano), 2020, Stochastic Processes and their Applications , Volume 130, Issue 3, March 2020, pp. 1820-1852, [ArXiv preprint].
- "Pathwise moderate deviations for option pricing", (with Antoine Jacquier), 2019, Mathematical Finance, Vol. 30, Issue 2, pp. 426--463, [ArXiv preprint].
- "Large deviations and averaging for systems of slow--fast stochastic
reaction--diffusion equations", (with Wenqing Hu and Michael Salins), 2019, Stochastics and Partial Differential Equations: Analysis and Computations, Vol. 7, Issue 4, pp. 808-?874, [ArXiv preprint].
- "Selection of quasi-stationary states in the Navier-Stokes equation on the torus", (with Margaret Beck and Eric Cooper), 2019, Nonlinearity , Vol. 32, pp. 209--237, [ArXiv preprint].
- "Analysis of multiscale integrators for multiple attractors and irreversible Langevin samplers", (with Jianfeng Lu), 2018, SIAM Multiscale Modeling and simulation , Vol. 16, Issue 4, pp. 1859--1883. [ArXiv preprint].
- "Discrete-time statistical inference for multiscale diffusions", (with Siragan Gailus), 2018, SIAM Multiscale Modeling and simulation , Vol. 16, Issue 4, pp. 1824--1858, [ArXiv preprint].
- "DGM: A deep learning algorithm for solving partial differential equations", (with Justin Sirignano), 2018, Journal of Computational Physics , Vol. 375, pp. 1339--1364, [ArXiv preprint].
- "Sequential Monte Carlo for fractional Stochastic Volatility Models", (with Alexandra Chronopoulou), 2018, Quantitative Finance , Vol. 18, Issue 3, pp. 507--517, [ArXiv preprint].
- "Indifference pricing for Contingent Claims: Large Deviations Effects", (with Scott Robertson), 2018, Mathematical Finance , Vol. 28, Issue 1, pp. 335--371, [ArXiv preprint].
- "Stochastic gradient descent in continuous time", (with Justin Sirignano), 2017, SIAM Journal on Financial Mathematics, Vol. 8, Issue 1, pp. 933--961, [ArXiv preprint]
- "Dimension Reduction in Statistical Estimation of Partially Observed Multiscale Processes", (with Andrew Papanicolaou), 2017, SIAM Journal on Uncertainty Quantification, Vol. 5, pp. 1220-1247, [ArXiv preprint]
- "Hypoelliptic multiscale Langevin diffusions: Large deviations, invariant measures and small mass asymptotics", (with Wenqing Hu), 2017, Electronic Journal of Probability, Vol. 22 (2017), paper no. 55, pp. 1-38, [ArXiv preprint]
- "Rare event simulation via importance sampling for linear SPDE's", (with Michael Salins), 2017, Stochastics and Partial Differential Equations: Analysis and Computations, Vol. 5, Issue 4, pp. 652-690, [ArXiv preprint].
- "The effect of heterogeneity on flocking behavior and systemic risk", (with Fei Fang and Yiwei Sun), 2017, Statistics and Risk Modelling, Vol. 34, No. 3--4, pp. 141-155, [ArXiv preprint]
- "Moderate deviations principle for systems of slow-fast diffusions", (with Matthew R. Morse), 2017, Asymptotic Analysis, Vol. 105, No. 3-4, pp. 97-135, [ArXiv preprint].
- "The pricing of contingent claims and optimal positions in asymptotically complete markets", (with Michail Anthropelos and Scott Robertson), 2017, Annals of Applied Probability, , Vol. 27, No. 3, pp. 1778-1830, [ArXiv preprint]
- "Markov processes with spatial delay: path space characterization, occupation time and properties", (with Michael Salins), 2017, Stochastics and Dynamics , Vol. 17, No. 6, 1750042 (21 pages), [ArXiv preprint].
- "Statistical Inference for Perturbed Multiscale Dynamical Systems", (with Siragan Gailus), 2017, Stochastic Processes and their Applications , Volume 127, Issue 2, pp. 419-448, [ArXiv preprint]
- "Improving the convergence of reversible samplers", (with Luc Rey-Bellet), 2016, Journal of Statistical Physics , August 2016, Vol. 164, Issue 3, pp. 472-494, [ArXiv preprint].
- "Rare event simulation for multiscale diffusions in random environments", 2015, SIAM Multiscale Modeling and Simulation , Vol. 13, No. 4, pp. 1290--1311 [ArXiv preprint].
- "Escaping from an Attractor: Importance Sampling and Rest Points I", (with Paul Dupuis and Xiang Zhou), 2015, Annals of Applied Probability , Vol. 25, No. 5, pp. 2909-2958, [ArXiv preprint]
- "Irreversible Langevin samplers and variance reduction: a large deviation approach", (with Luc Rey-Bellet), 2015, Nonlinearity , Vol. 28, pp. 2081-2103, [ArXiv preprint]
- "Default Clustering in Large Pools: Large Deviations", (with Richard Sowers), 2015, SIAM Journal on Financial Mathematics , Vol. 6, (2015), pp. 86-116, [SSRN], [ArXiv preprint].
- "Quenched Large Deviations for Multiscale Diffusion Processes in Random Environments", 2015, Electronic Journal of Probability, Vol. 20,
(2015), no. 15, pp. 1-29, [ArXiv preprint]
- "Variance reduction for irreversible Langevin samplers and diffusion on graphs", (with Luc Rey-Bellet), 2015, Electronic Communications in Probability, Vol. 20,
(2015), no. 15, pp. 1-16, [ArXiv preprint].
- "Non-asymptotic performance analysis of importance sampling schemes for small noise diffusions", 2015, Journal of Applied Probability , Vol. 52, pp. 1-14, [ArXiv preprint]
- "Large Portfolio Asymptotics for Losses from Default", (with Kay Giesecke, Richard Sowers and Justin A. Sirignano), 2015, Mathematical Finance, Vol. 25, No. 1, (January 2015), pp. 77-114, [SSRN] ,[ArXiv preprint]
- "Rare event simulation in the neighborhood of a rest point", (with Paul Dupuis), 2014, Winter Simulation Conference, article in pdf , (IEEE, 2014), pp. 564-573 .
- "Filtering the Maximum Likelihood for Multiscale Problems", (with Andrew Papanicolaou), 2014, SIAM Multiscale Modeling and Simulation , Vol. 12, No. 3, pp. 1193-1229, [ArXiv preprint].
- "Fluctuations Analysis for Loss from Default", (with Kay Giesecke and Justin A. Sirignano), 2014, Stochastic Processes and their Applications, Volume 124, Issue 7, pp. 2322-2362, [SSRN],[ArXiv preprint].
- "Scaling Limits and Exit Law for Multiscale Diffusions", (with Sergio A. Almada), 2014, Asymptotic Analysis, Volume 87, pp. 65-90, [ArXiv preprint].
- "Fluctuation analysis and short time asymptotics for multiple scales diffusion processes", 2014, Stochastics and Dynamics, Vol. 14, No.3, pp. 1350026 [ArXiv preprint].
- "Maximum likelihood estimation for small noise multiscale disffusions", (with Alexandra Chronopoulou), 2013, Statistical Inference for Stochastic Processes,Volume 16, Issue 3, pp. 237-266, [ArXiv preprint]
- "Large Deviations and Importance Sampling for Systems of Slow-Fast Motion", 2013, Applied Mathematics and Optimization, Vol. 67, pp. 123-161, [ArXiv preprint]
- "Default Clustering in Large Portfolios: Typical Events", (with Kay Giesecke and Richard Sowers), 2013, Annals of Applied Probability, Volume 23, Number 1, pp. 348-385, [SSRN], [ArXiv preprint].
- "Importance Sampling for Multiscale Diffusions", (with Paul Dupuis and Hui Wang), 2012, SIAM Multiscale Modeling and Simulation , Vol. 12, No. 1, pp. 1-27, [ArXiv preprint].
- "Large Deviations for Multiscale Diffusions via Weak Convergence Methods", (with Paul Dupuis), 2012, Stochastic Processes and Their Applications, 122, pp. 1947-1987, [ArXiv preprint].
- "Large Deviations Principle for a Large Class of One-Dimensional Homogeneous Strong Markov Processes", 2012, Journal of Theoretical Probability, Volume 25, Issue 4, pp. 925-949, [ArXiv preprint]
- "Recovery Rates in Investment-Grade Pools of Credit Assets: A Large Deviations Analysis", (with Richard Sowers), 2011, Stochastic Processes and Their Applications, Volume 121, Issue 12, pp. 2861-2898, [SSRN] ,[ArXiv preprint].
- "Rare Event Simulation in Rough Energy Landscapes", (with Paul Dupuis and Hui Wang), 2011, Winter Simulation Conference, article in pdf , (IEEE, 2011), pp. 504-515.
- "Wiener Process with Reflection in Nonsmooth Narrow Tubes", 2009, Electronic Journal of Probability, Vol. 14, Paper no. 69, pp. 2011-2037 article in pdf
- "Method of Moments Estimation of Ornstein-Uhlenbeck Processes Driven by General Levy Process", 2009, Annales de
l'I.S.U.P., Volume 53 - Fascicule 2-3, pp. 3-19 [ArXiv preprint]
- "Reaction Diffusion Equations with Non-Linear Boundary Conditions in Narrow Domains",
(with Mark Freidlin), 2008, Asymptotic Analysis, Volume 59, Number 3-4, pp.227-249 article in pdf
- "A note on the Smoluchowski- Kramers
approximation for the Langevin equation with reflection", 2007, Stochastics and Dynamics, Vol. 7, No. 2,
pp. 141-153 : article in pdf
Other Publications:
- PhD Thesis. "Asymptotic problems for stochastic processes with reflection and related PDE's", University Of Maryland, College Park, USA, May 2009,
Thesis
Advisor: Professor Mark Freidlin.
- M.A. scholarly paper. "The Smoluchowski-Kramers approximation for the Langevin equation with reflection in 1-D", University Of Maryland, College Park, USA, May 2006,
Scholarly paper
Advisor: Professor Mark Freidlin.
- Undergraduate thesis. "Extension of Ito Formulae to Sobolev Spaces and some Applications", National Techincal University
of Athens, Greece,June 2004, Thesis in Greek
Advisor: Professor Ioannis Spiliotis.
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Distinctions, Awards and Grants:
- 2021-2024, NSF-SES 2120115.
- 2021-2024, NSF-DMS 2107856.
- 2020-2024, Department of Defense/ARO W911NF2010244.
- 2020-2021, SIMONS FELLOW IN MATHEMATICS AWARD, 672441.
- 2016-2021, NSF CAREER AWARD, NSF-DMS 1550918.
- 2015, Alfred P. Sloan Foundation support for attending the EVA 2015 conference.
- 2013-2017, Hariri Institute Junior Fellow.
- 2013-2017, NSF-DMS 1312124.
- 2012, SIAM travel grant for the 2012 SIAM Conference on Financial Mathematics & Engineering (FM12).
- 2011, IATF travel grant, Brown University.
- 2011, NSF block travel grant for the 16th INFORMS Applied Probability Conference.
- 2008-2009, Monroe Martin Talk Award in the presentation competition of the Spotlight on Graduate Research at the University of Maryland.
- Fall 2008, Awarded Department of Mathematics Dissertation Fellowship, University of Maryland.
- 2007-2008, Seymour Goldberg Paper Award in the written competition of the Spotlight on Graduate Research at the University of Maryland.
- 2007, Levermore Foundation Travel Grant, University of Maryland.
- 2006, Goldhaber Travel Grant, Graduate School, University of Maryland.
- 2004-2006, Block Grant Fellowship from the Department of Mathematics
of the University of Maryland.
- 2004-2005, Award from Eygenidio Foundation for outstanding Greek Students that
are pursuing graduate studies.
- 2003-2005, Three times awarded from the Technical Chamber of Greece for academic excellence
at the School of Applied Mathematics and Physical Sciences of the National Technical
University of Athens, Greece.
- 2003-2005, Three times awarded from the Greek State Scholarships Foundation for academic
excellence at the School of Applied Mathematics and Physical Sciences of the National
Technical University of Athens, Greece.
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Editorial Work:
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Invited Talks and Lectures:
- June 13-16, 2022, Invited talk at the Conference on the mathematics of complex data
at KTH Royal Institute of Technology Stockholm, Sweden.
- March 26-27, 2022, Invited talk at the AMS Spring Sectional Meeting (#1177)
at Purdue University, West Lafayette, IN.
- March 24, 2022, Invited talk at the Probability and Stochastic Analysis seminar, Ohio state University.
- November 29, 2021, Invited talk at the Computational and Applied Math Seminar, Tufts University.
- November 19, 2021, Invited talk at the Department of Mathematics, Houston University.
- November 12, 2021, Invited talk at the Department of Mathematics, Tulane University.
- October 25, 2021, Invited talk at the Department of Mathematics, University of Southern California.
- October 7, 2021, Invited talk at the Department of Statistics, Columbia University.
- September 16, 2021, Invited talk at the SIAM Financial Mathematics and Engineering (SIAG/FME) Seminar Series.
- September 1-7, 2021, Invited talk at the Mathematics and Computation of
Financial Engineering planned in Erice (Sicily, Italy)
- July 1 2021- December 17 2021, Participant on the semester long program on Mathematics of Deep Learning at the Isaac Newton Institute for Mathematical Sciences in Cambridge, England
- June 21, 2021, Invited talk at the Emerging Capabilities & Data Science smeinar of Discover Financial Services.
- June 1-4, 2021, Invited talk at the session on SIAM conference on Financial Mathematics, Philadelphia, US.
ECRM-MRM seminar
- May 23-27, 2021, Invited talk at the special section on the interplay between dynamics and data science" at the SIAM conference on Dynamical Systems, Portland, Oregon, US.
- April 15, 2021, Invited talk at the Applied Probability and Risk Seminar at Columbia University, US.
- March 20-21, 2021, Invited talk at the special section on stochastic analysis at the AMS Fall Eastern Sectional Meeting
- March 1-5, 2021, Invited talk at the session on Computational statistics meets computational dynamics, SIAM CSE conference
- February 5, 2021, Presentation at Sparse data and small datasets in machine learning, Hariri Institute, BU.
- February 2, 2021, Invited talk at the session on Stochastic Analysis seminar at Imperial College, London, UK.
- January 22, 2021, Invited talk at the the Clarkson Center for Complex Systems Science, Clarkson University.
- January 6-9, 2021, Invited talk at the SIAMMINI7 - SIAM Minisymposium on Mathematics of Machine Learning in Finance at the 2021 JMM meeting
- November 16-17, 2020, Invited talk at the workshop on Uncertainty Management and Machine Learning in Engineering Applications.
- November 4, 2020, Invited talk at the Probability Seminar of the Department of Mathematics of Univeristy of Utah and University of Arizona (joint seminar).
- October 7, 2020, Invited talk at the Scientific Computation Seminar at Nottingham, England, UK.
- October 3-4, 2020, Invited talk at the special section on turbulence and mixing in fluid dynamics at the AMS Fall Eastern Sectional l Meeting
- September 10, 2020, Invited talk at the financial mathematics seminar at Florida State University
- July 25, 2020, Invited talk at the Thematic day on the mean field training of multi-layer networks
- September 9-11, 2020, Invited talk at a conference on Machine Learning in Finance, Imperial College, London. (cancelled due to COVID-19)
- June 28-July 3, 2020, Invited talk at BIRS Workshop Invitation: Modeling, Learning and Understanding: Modern Challenges between Financial Mathematics, Financial Technology and Financial Economics. (cancelled due to COVID-19)
- June 8-11, 2020, Invited talk at Workshop on Mathematics for Complex Data, Stockholm, Sweden. (cancelled due to COVID-19)
- June 5-9, 2020, Invited talk at 13th AIMS Conference on Dynamical Systems, Differential Equations and Applications, Atlanta, USA. (cancelled due to COVID-19)
- April 10, 2020, Invited talk at Applied Math / Applied Math Lab Seminar, Courant Institute, NYU. (cancelled due to COVID-19)
- April 3, 2020, Invited talk at Department of Mathematics, Tufts University. (cancelled due to COVID-19)
- December 11-14, 2019, Invited talk at SIAM Conference on Analysis of Partial Differential Equations, La Quinta, California.
- October 14-18, 2019, Invited participant at Deep learning and partial differential equations, AIM Workshop San Jose, California.
- July 8-12, 2019, Invited talk at Stochastic Processes and their applications conference, Chicago, 2019.
- June 4-7, 2019, Invited talk and Mini-symposium organizer at SIAM Conference on Financial Mathematics and Engineering (FME19), Toronto, Canada.
- May 19-23, 2019, Invited talk at SIAM Conference on Applications of Dynamical Systems at Snowbird, Utah.
- May 15-17, 2019, Invited talk at NESS conference 2019, Hartford, Connecticut.
- April 15, 2019, Invited talk at Department of Applied Probability and Statistics at Sanda Barbara (UCSB), CA.
- March 14, 2019, Invited talk at Department of Mathematics at the University of Connecticut (Uconn), Connecticut.
- Feb 25-March 1, 2019, Invited talk at SIAM Conference on Computational Science and Engineering (CSE19), Spokane, WA.
- November 4-7, 2018, Invited talk at Informs Annual Meeting 2018, Phoenix, Arizona
- October 24, 2018, Invited talk at ORFE Seminar, Princeton University, NJ.
- September 17-21, 2018, Invited lecture at Advances in Computational Statistical Physics
Perspectives en physique statistique computationnelle, CIRM, Marseille, France.
- Aug 30-31, 2018, Visit at Department of Mathematics, Imperial College, England.
- July 10-13, 2018, Invited lecture at Numerical analysis for deterministic and stochastic differential equations, NTUA, Athens, Greece.
- April 25, 2018, Invited Talk at the
Mathematical Finance and Applied Probability Seminar, Department of Mathematics, University of Connecticut.
- April 23, 2018, Invited Talk at the
Probability and Statistics Seminar, Department of Mathematics and Statistics, UMASS at Amherst
- April 16-19, 2018, Invited lecture at SIAM Uncertainty Quantification meeting 2018, Garden Grove, California.
- March 17-18, 2018, Invited lecture at AMS Spring Central Sectional Meeting, Ohio State University, Columbus
- March 9, 2018, Invited lecture at Scientific computing seminar, Brown University, Providence
- November 21, 2017, Invited lecture at Applied Mathematics Seminar, Department of Mathematics, Imperial College, England.
- October 31, 2017, Invited lecture at Department of Mathematics and Statistics, McGill University, Canada.
- September 15, 2017, JP Morgan and Chase, Quantitative Finance Seminar.
- August 31-September 2, 2017, Invited lecture at SIAM Conference on Mathematical Modelling in Finance 2017, Imperial College, England.
- July 14-17, 2017, Invited lecture at Greek stochastics 2017 conference, Milos, Greece.
- June 14-17, 2017, Invited lecture at
Ninth Workshop on Random Dynamical Systems, Bielefeld, Germany.
- November 25, 2016, Invited lecture at Stochastic Analysis Seminar, Department of Mathematics, Imperial College, England.
- November 22, 2016, Invited lecture at Statistics Seminar, Department of Mathematics, Imperial College, England
- November 17-19, 2016, Invited lecture at 2016 SIAM Conference on Financial Mathematics & Engineering (FM16), 2016 conference in Austin, Texas
- November 12-13, 2016, Co-organizing a Special Session on Recent Advances in Stochastic Processes and Stochastic Computation during the Fall 2016 Southeastern AMS Sectional Meeting
North Carolina State University, Raleigh, NC
- October 18, 2016, Invited Talk at the
Applied Analysis and Computation Seminar, Department of Mathematics and Statistics, UMASS at Amherst
- September 5-9, 2016, Invited lecture at MCMC and particle methods: sampling, inference and stochastic approximation, 2016 workshop in ICMS Edinburgh, Scotland
- August 15-19, 2016, Co-organizing the BU-Keio Joint conference in Probability and Statistics
- July 18-22, 2016, Invited lecture at Stochastic numerical algorithms, multiscale modeling and high-dimensional data analytics, 2016 workshop in ICERM, Providence, USA
- July 10-13, 2016, Invited lecture at Greek stochastics 2016 conference, Tinos, Greece
- June 20-24, 2016, Invited lecture at Spatially Distributed Stochastic Dynamical Systems in Biology Workshop in Newton Institute at Cambridge, England
- April 27, 2016, Invited lecture at Probability Seminar, Department of Mathematics, University of Maryland at College Park.
- April 18, 2016, Invited lecture at Colloquium Series on Applied and Computational Mathematics, Department of Mathematics, Penn State University.
- March 29-April 1, 2016, Invited lecture at the 11th International Workshop
on Rare Event Simulation (RESIM), Eindhoven, Netherlands
- March 16-19, 2016, Seminar on Stochastic Processes 2016, University of Maryland
- January 14, 2016, Invited lecture at CISE Graduate Student Workshop 3.0.
- December 7, 2015, Invited lecture at Mathematical Finance, Risk and Uncertainty Seminar, Department of Industrial and Enterprise Systems Engineering and Mathematics Department at the University of Illinois, Urbana-Champaign.
- November 1-4, 2015, Three Invited lectures at INFORMS Annual Meeting, Philadelphia
- October 19, 2015, Invited lecture at Department of Mathematics and Statistics, Dynamics seminar, Boston University
- September 24, 2015, Invited lecture at Department of Mathematics Probability seminar, Duke University
- August 8-13, 2015, Invited lecture at 2015 Joint Statistical Meeting (JSM), Seattle, Washington
- July 11-13, 2015, Invited lecture at Greek stochastics 2015 conference, Crete, Greece
- June 15-19, 2015, Invited lecture at Extreme Value Analysis (EVA) Conference at University of Michigan
- June 1-5, 2015, Invited/Sponsored Participant at Methods of Mathematical Finance
a conference in honor of Steve Shreve?s 65th birthday
Carnegie Mellon University, Pittsburgh, PA
- May 1, 2015, Session Chair and talk at Conference on Mathematical Finance and Partial Differential Equations at Rutgers University, New Brunswick
- April 8, 2015, Invited lecture at BU-Brown PDE Seminar
- March 31, 2015, Invited lecture at Department of Mathematics, University of Tennessee
- March 7-8, 2015, Invited lecture at AMS Eastern Section Meeting
- January 28, 2015, Invited lecture at Hariri Institute, Boston University
- January 16, 2015, Invited lecture at Department of Mathematics, Michigan State University
- December 20-22, 2014, Greek stochastics 2014 conference, Athens, Greece
- December 7-10, 2014, 2014 Winter Simulation Conference at Savannah, Georgia
- November 13-15, 2014, Invited lecture at the SIAM Financial Mathematics conference at Chicago
- Octomber 28, 2014, Invited lecture at the Department of Mathematics, Wayne State University
- Octomber 20, 2014, Invited lecture at the Department of Mathematics, Carnegie Mellon University
- September 22-26, 2014, Systemic Risk: Mathematical Modelling and Interdisciplinary Approaches,
at the Isaac Newton Institute for Mathematical Sciences in England
- August 27-29, 2014, Invited lecture at the 10th International Workshop
on Rare Event Simulation (RESIM), Amsterdam, Netherlands
- June 2-6, 2014, Invited lecture at the Computational methods for statistical mechanics -- At the interface between mathematical statistics and molecular simulation, in Edinburgh, Scotland
- May 6, 2014, Invited lecture at the Probability Seminar at CUNY
- April 26 2014, Invited lecture at the
The 28th New England Statistical Symposium, 26 April 2014
- April 1-4, 2014, Invited lecture at the SIAM conference on Uncertainty Quantification, Savannah, Georgia
- March 29-30, 2014, Invited lecture at the AMS Sectional Meeting on Mathemtical Finance at University of Maryland, Baltimore County, Baltimore, MD
- March 13, 2014, Invited lecture at the Stochastics Seminar, Georgia Tech
- January 15-18, 2014, Invited lecture at the Joint Mathematical Meetings, Baltimore
- December 5, 2013, Invited lecture at Division of Applied Mathematics, Brown University
- November 20, 2013, Invited lecture at Hariri Institute, Boston University
- November 13, 2013, Invited Colloqium lecture at Department of Statistics, University of Connecticut
- October 17, 2013, Invited lecture at Math Finance Seminar, Columbia University
- October 12-12, 2013, Invited lecture at AMS Sectional Meeting Program, Temple University, Philadelphia.
- September 20-22, 2013, Invited lectures at BU-Keio Probability workshop, Boston University, Boston.
- July 8-12, 2013, Session Chair and Speaker at SIAM Annual Meeting, San Diego, California.
- June 9-12, 2013, Speaker at SIAM Conference on Mathematical Aspects of Material Science, Philadelphia, Pennsulvania.
- April 2013, Invited lecture at the
The 27th New England Statistical Symposium, 27 April 2013
- April 2013, Invited lecture at the
Workshop on Large deviations and asymptotic methods in finance, Imperial College London, England, 9-11 April 2013
- April 2013, Invited lecture at the
AMS Sectional Meeting, Boston College, Boston, 6-7 April 2013
- March 2013, Invited Talk at the
Stochastics Seminar, Mathematics Department, University of Utah
- February 2013, Invited Talk at the
Stochastics Seminar, Mathematics Department, Worcester Polytechnic Institute
- November 2012, Invited Talk at the
Seminar of Financial Mathematics, Mathematics Department, University of Michigan, Ann Arbor
- October-November 2012, Invited Talk at the
Monte Carlo Methods in the Physical and Biological Sciences, Workshop at ICERM, Brown University, Providence
Title: Escaping from an attractor: importance sampling and rest points.
- October 2012, Session Chair at the
2012 Informs Annual meeting in Phoenix, Arizona
- October 2012, Invited Talk at the
Probability, PDE and Math Finance Seminar, Department of Mathematics, Rutgers University
- October 2012, Invited Talk at the
Probability Seminar, Department of Mathematics, MIT
- October 2012, Invited Talk at the
Probability Seminar, Department of Mathematics and Statistics, UMASS at Amherst
- September 2012, Invited Talk at the Data Assimilation Workshop, Oxford-Man Institute, England
- July 2012, Invited Talk at the SIAM Conference on Financial Mathematics and Engineering, Minnesota
Title: Most Likely Path to Systemic Failure.
- July 2012, Invited Talk at the Department of Mathematics, University of California at San Diego
Title: Large Deviations and Monte Carlo Methods for Problems with Multiple Scales.
- January 2012, Invited Talk at the Department of Statistics & Operations Research, University of North Carolina
Title: Large Deviations, Metastability and Monte Carlo Methods for Multiscale Problems.
- 12-16 December 2011, Invited Talk at the EPSRC Symposium Workshop - Multiscale Systems: Theory and Applications, Warwick, England.
Title: Large deviations for multiscale diffusions and fast simulation.
- 17 October 2011, Invited Talk at the Department of Operations Research and Financial Engineering, Princeton University.
Title: Default clustering in large portfolios and most likely path to failure.
- 5-9 September 2011, Invited Talk at the ENUMATH Conference 2011
Leicester, England.
Title: Default clustering in large portfolios: typical and atypical events.
- 6-8 July 2011, Invited Talk at the Applied Probability Society Conference,
Royal Institute of Technology (KTH),Stockholm, Sweden.
Title: Large Deviations and Fast Simulation for Multiscale Diffusions and Rough Energy Landscapes.
- April 2011, Invited Talk at the Department of Mathematics at Chicago University.
Title: Large Deviations and Importance Sampling for Multiscale Diffusions.
- March 2011, Invited Talk at the Department of Mathematics at Stanford University.
Title: Default clustering in large portfolios: typical and atypical events.
- Feb 2011, Invited Talk at the Department of Mathematics and Statistics at Boston University.
Title: Large Deviations and Importance Sampling for Multiscale Diffusions.
- March 2011, Invited Talk at the Department of Applied Physics and Applied Mathematics at Columbia University.
Title: Large Deviations and Importance Sampling for Multiscale Diffusions.
- Feb 2011, Invited Talk at the Department of Mathematics and Statistics at Boston University.
Title: Large Deviations and Importance Sampling for Multiscale Diffusions.
- Oct 2010, Invited Talk at the Rare Event Simulation Workshop in Bordeaux, France.
Title: Large Deviations and Importance Sampling for Multiscale Diffusions.
- June 2010, Talk at the Department of Mathematics at the University of Minnesota.
Title: Reaction-Diffusion Equations with Nonlinear Boundary Conditions in Narrow Domains and Wave Front Propagation.
- April 2009, Invited talk at the Department of Mathematics at the University of Illinois at Urbana-Champaign.
Title: Reaction-Diffusion Equations with Nonlinear Boundary Conditions in Narrow Domains and Wave Front Propagation.
- April 2009, Invited talk at the Department of Statistics at Warwick University.
Title: Reaction-Diffusion Equations with Nonlinear Boundary Conditions in Narrow Domains and Wave Front Propagation.
- January 2009, Invited talk at the Department of Statistics and Applied Probability and the Center for Financial Mathematics and Statistics (CRFMS) at the University of Santa Barbara.
Title: Reaction-Diffusion Equations with Nonlinear Boundary Conditions in Narrow Domains and Wave Front Propagation.
- October 2008, Talk at the Applied Partial Differential Equations Research Interaction Team (RIT) at the University of Maryland.
Title: Reaction-Diffusion Equations in Narrow Domains and Wave Front Propagation.
- September 2008, Invited talk at the School of Applied Mathematics and
Physics of the National Technical University
of Athens, Greece
Title: Reaction-Diffusion Equations with Non-Linear Boundary
Conditions in Narrow Tubes and Wave Front Propagation.
- May 2008-2007, Invited lectures on Advanced Analytic Methods with Applications (Graduate course at the University of Maryland)
Title: Lectures in homogenization with probabilistic methods.
- May 2008, Invited talk at the Graduation Conference at the University of Maryland.
Title: Reaction Diffusion Equations with Non-Linear Boundary Conditions in Narrow Domains. (presentation)
- April 2008, Invited talk at the Graduate Research Interaction Day at the University of Maryland.
Title: Wave Front Propagation In Narrow Domains.
- November 2007, Talk at the Mathematical Finance Research Interaction Team (RIT) at the University of Maryland.
Title: Log Prices following General Levy Driven Ornstein- Uhlenbeck Processes.
- September 2007, Invited talk at the Graduate Students Statistics and Probability seminar at the University of Maryland.
Title: Probabilistic Approach in Homogenization: An Introduction. (presentation)
- September 2007, Invited talk at the Summer School ''De Ludo Aleae''
on probability, Universita' ``La Sapienza'' Roma, Italy.
Title: Reaction Diffusion Equations with Non-Linear Boundary Conditions in Narrow Domains. (presentation)
- June 2006, Invited talk at the Workshop: Large Scale Stochastic Dynamics
and Interaction with Kinetic Theory, Foundation for Research and Technology, Heraklion Crete, Greece.
Title: The Smoluchowski-Kramers approximation for the Langevin equation with reflection. (presentation)
Workshops and Conferences that I have attended:
- 17-21 March, 2014, Workshop on Stochastic Graph Models, ICERM, Providence, RI.
- 3-8 August, 2013, JSM 2013, Montreal, Canada.
- 9-12 June, 2013, Speaker at SIAM Conference on Mathematical Aspects of Material Science, Philadelphia, Pennsulvania.
- 20-24 May, 2013, Invited Participant Conference on Asymptotic Problems in Honor of Mark Freidlin's Birthday
, Maryland.
- 27 April, 2013, Invited lecture at the
The 27th New England Statistical Symposium
- 9-11 April, 2013, Invited lecture at the
Workshop on Large deviations and asymptotic methods in finance, Imperial College London, England
- 6-7 April, 2013, Invited lecture at the
AMS Sectional Meeting, Boston College, Boston
- January 14-18, 2013, Invited Participant at IMA Annual Program Year Workshop
Theory and Applications of Stochastic PDEs, Minnesota, Minneapolis.
- July 8-11, 2012, Speaker at SIAM Conference on Financial Mathematics and Engineering, Minnesota, Minneapolis.
- June 4-8, 2012, Probability, Control and Finance
A Conference in Honor of Ioannis Karatzas, Columbia University, New York.
- December 12-16, 2011, Speaker at EPSRC Symposium Workshop - Multiscale Systems: Theory and Applications, Warwick, England.
- September 5-9, 2011, Speaker at ENUMATH Conference 2011
Leicester, England.
- July 6-8, 2011, Speaker at Applied Probability Society Conference,
Royal Institute of Technology (KTH),Stockholm, Sweden.
- January 24-28, 2011, Participant at Random Media: Homogenization and Beyond IPAM, UCLA.
- October 28-29, 2010, Invited Speaker at Rare Event Simulation Workshop in Bordeaux, France.
- June 7-18, 2010, Participant at New Mathematical Models in Economics and Finance IMA, University of Minnesota.
- May 6-9, 2010, Participant at Stochastics and Dynamics: Asymptotic Problems CSCAMM, University of Maryland at College Park.
- June 9-13, 2008, Participant at The 12th International Conference on Hyperbolic Problems: Theory, Numerics, Applications CSCAMM, University of Maryland at College Park.
- February 21-22 2008, Participant at the February Fourier Talks at the University of Maryland at College Park.
- April 13-15 2007, Minicourse in C++ by Daniel Duffy: Preparation for a Life in Quantitative Finance.
- October 2006, Participant at the Mathematical Finance Conference in honor of the 60th Birthday of Dilip B. Madan,
University of Maryland, College Park, USA.
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Seminars that I have co-organized or I am co-organizing:
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Graduate Teaching:
- GRS MA783- Advanced Stochastic Processes (Boston University) Spring 2019, Fall 2021
- GRS MA782- Hypothesis Test (Boston University) Spring 2016, Spring 2022
- GRS MA884- Seminar in Probability and Statistics with focus on Multiscale Methods for stochastic processes and related dynamical systems (Boston University), Fall 2019
- GRS MA884- Topics in Multiscale Analysis: Theory, Computation and Applications (Boston University) Spring 2014
The official name for the class is "GRS MA884-Seminar in Statistics and Probability", but the actual topic that will be covered is Multiscale Methods
- GRS MA777- Multiscale Methods for Stochastic Processes and Differenial Equations (Boston University) Spring 2018
- Fall 2011, Topics in Homogenization: Theory and Computation (APMA 2811L-Brown University)
- Fall 2010, Topics on Averaging and Metastability with Applications (APMA 2811G-Brown University)
- Summer 2010, Topics on Survival Analysis (APMA 2980-Brown University, independent study)
- Fall 2009, Asymptotic Problems for Differential Equations and Stochastic Processes (APMA 2811D-Brown University)
- Spring 2008 and Spring 2007, Advanced Analytic methods with applications (Math 648M-University of Maryland at College Park) Lectures in homogenization with probabilistic methods
Undergraduate Teaching:
- MA 583-Introduction to Stochastic Processes (Boston University), Spring 2013, Spring 2015, Spring 2016, Spring 2018, Spring 2019
- MA 581-Introduction to Probability (Boston University), Spring 2015, Fall 2021,
- MA 115-Statistics I (Boston University), Fall 2012, Fall 2013, Fall 2014, Fall 2015, Fall 2017, Fall 2018, Fall 2019
- APMA 1200-Operations Research -- Probabilistic Models (Brown University), Spring 2011, Spring 2012
- APMA 1680-Nonparametric Statistics (Brown University), Spring 2010
- Math 140-Calculus I (University of Maryland at College Park), Summer 2008
- 2006 - 2008, Discussion leader for College Algebra (Math 113), Intoduction to Differential Equations (Math 246),
Calculus III (Math 241) -University of Maryland at College Park
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Other Links:
- National Technical University of Athens ,NTUA
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